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Identification of the Changbaishan 'Millennium' (B-Tm) eruption deposit in the Lake Suigetsu (SG06) sedimentary archive, Japan: Synchronisation of hemispheric-wide palaeoclimate archives

Lookup NU author(s): Professor Takeshi Nakagawa

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This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).


Abstract

The B-Tm tephra, dispersed during the highly explosive Changbaishan 'Millennium' eruption (ca. 940 -950 CE) and a key marker layer within the Greenland ice cores, has now been identified in the Lake Suigetsu (SG06) sedimentary sequence, central Japan. The major element geochemistry of the volcanic glasses within this tephra layer are compared to a new glass dataset from the distal type-locality (Tomakomai Port, Hokkaido) and other published 'Millennium' eruption/B-Tm deposits, to verify this correlation. The discovery of the B-Tm tephra in the Lake Suigetsu record provides, to date, the most southerly identification of this ash and, crucially, the first direct tie-point between this high-resolution, mid-latitude palaeoclimate archive and the Greenland ice cores. These findings present significant encouragement for on-going research into the tephrostratigraphy of East Asia, focusing on the identification of widely-dispersed tephra layers which can facilitate the synchronisation of disparate palaeoclimate archives and thus enable the assessment of spatio-temporal variations in past climatic change. (C) 2016 The Authors. Published by Elsevier Ltd.


Publication metadata

Author(s): McLean D, Albert PG, Nakagawa T, Staff RA, Suzuki T, Suigetsu 2006 Project Members, Smith VC

Publication type: Article

Publication status: Published

Journal: Quaternary Science Reviews

Year: 2016

Volume: 150

Pages: 301-307

Print publication date: 15/10/2016

Online publication date: 25/08/2016

Acceptance date: 16/08/2016

Date deposited: 24/03/2017

ISSN (print): 0277-3791

ISSN (electronic): 1873-457X

Publisher: Pergamon Press

URL: https://doi.org/10.1016/j.quascirev.2016.08.022

DOI: 10.1016/j.quascirev.2016.08.022


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